[Plugin: Video Thumbnails] Scan whole post instead of "the_content"

Well, I’ve done some heavy coding on my wordpress blog and I’ve managed to place my YouTube embed code outside of “<?php the_content(); ?>”.
I’ve created a custom taxonomy to place the Youtube video id in the embed code using shortcodes for easier back-end use.

My question, is there a way to scan outside of “<?php the_content(); ?>”?
Is it possible to scan a div within the post? that way I can put the embed video inside a div and have the plugin scan that div on every post I make.

to sum it all up, I made it to where i don’t have to keep copying and pasting the embed code of the video. so it’s already coded into the post outside of the content area. That isn’t important, I just want to find a way to scan the entire post (maybe a div within the post) instead of scanning the content area of the post..